From e25d58d7f53d0d30c00a7b6045e8447474f95c95 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=98=81=E4=B8=BB?= <xjkxjk2021@163.com>
Date: Fri, 21 Nov 2025 11:17:21 +0800
Subject: [PATCH] Fix crash when submitting empty player signature

---
 .../emu/nebula/server/handlers/HandlerPlayerSignatureEdit.java  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/emu/nebula/server/handlers/HandlerPlayerSignatureEdit.java b/src/main/java/emu/nebula/server/handlers/HandlerPlayerSignatureEdit.java
index e9a77a8..0b080d0 100644
--- a/src/main/java/emu/nebula/server/handlers/HandlerPlayerSignatureEdit.java
+++ b/src/main/java/emu/nebula/server/handlers/HandlerPlayerSignatureEdit.java
@@ -17,7 +17,7 @@ public class HandlerPlayerSignatureEdit extends NetHandler {
         var req = PlayerSignatureEditReq.parseFrom(message);
         var signature = req.getSignature();
         
-        if (signature == null) {
+        if (signature == null || signature.isEmpty()) {
             return session.encodeMsg(NetMsgId.player_signature_edit_failed_ack);
         }